It is found that there is an interoperability gap between sensor layer and upper service layer constructed by sensor web enablement

which takes extraordinary large cost to make adaption manually between sensor layer and service layer

and it also seriously affects real-time observation

forming a huge obstacle to enable sensor plugand-play.An information model which is called USDI is designed to describe data model and protocol model of sensors

and based on USDI

a method of dynamic adapter is proposed

by generating adaptor automatically to realize automatical adaptation with sensor

and enable sensor plug-and-play.Related experiments prove that this method can adapt sensor datas without human intervention

furthermore realize automatic parsing of sensor data and provide standard method for sensor plug-and-play.